Laguna Negra, Lake in Santiago Metropolitan Region, Chile

Laguna Negra is a lake in the Santiago Metropolitan Region of Chile, set at an elevation of 2700 meters. Its dark water gives the lake its name, and the shoreline is rocky with patches of grass and low shrubs.

The lake formed long ago in a glacial valley, and for generations it served as a landmark for herders moving livestock through the mountains. In the 20th century, a dirt road improved access, bringing more visitors to its shores.

For locals from nearby villages, the lake is a familiar stop during summer outings, and you might see families picnicking on the flatter rocks. The dark water is often mentioned in stories told by older residents, who say it never freezes completely.

The lake sits high in the mountains, so the air is thin and the weather can change quickly. Bring warm clothing and sun protection, and allow extra time to adjust to the altitude.

Despite its name, the water is not truly black but a deep greenish blue that looks dark from a distance. On windy days, small whirlwinds sometimes lift water from the surface, a sight that surprises those who stop to watch.